For discussion of all the other girl+mecha lines that have cropped up since Shinki began: Frame Arms: Girls, Megami Device, Armor Girls Project, Desktop Army, etc. This includes kinda-sortas like Daibadi's Polynian and things like Strike Witches and Fumikane's original Mecha Musume.

Kotobukiya Frame Arms Girl is a mecha musume series created in line with the Frame Arms mecha series (nuff said).

Here are some of the available and soon to be available models at this time of posting (all pics taken from Amiami):

Gourai

Gourai Type 10 Version

Stylet

Materia (Normal)

Materia (White)

Architect

Jinrai

Jinrai Indigo

Baselard

Baselard Limited Color Edition

My thoughts so far... I love them! They're nice to look at, easy to mod, and readily compatible with the various weapon and extra option parts Kotobukiya has to offer. Each kit has 3 face plates minimum, and has decal sheets for when anyone accidentally messes up the eyes, or wants a different styled pantsu.

My main gripe would be the hip joint. Most cannot fully extend the legs forward because of the way the lower torso (aka pantsu) is built, with the exception of the Materia and Jinrai girls that have great articulation due to additional interior joints (I with they did this with every model). Also, the newer models have swivel jointed wrists that might be finicky to some people.

All in all, they're great! In fact, I've already fully modded two of my girls. I have Chie (Gourai), Sora (Stylet), Karin (Materia White) and Karen (Materia Normal). My material girls have repaints and are waiting for pre-ordered equipment. Chie and Sora I've posted in my thread but I'll post their pics here as well.

Just read this thread after you mentioned it in your Show and Tell thread, and I must say, I'm finding myself tempted to get a few of these girls. The ones that have definitely caught my eye... Gourai, Architect and Jinrai Indigo.

If I do end up getting them (money permitting), I will be sure to post pics of them here. I need an excuse to come onto BSW more often (and not chill out on Twitter all the time).

I have some of these girls as well, Baselard, Jinrai Indigo and Materia... I also have the Red Baselard, Innocentia and Hresvelgr on Pre-Order ... I find these girls a great alternative to Busou Shinki and they have access to way more armament and weapons too .. you can even get some 1/144 Gunpla stuff to work with them. The Modeling Support Goods really opens up the potential too.. Very cool stuff.